25th Congress of International Council of the Aeronautical Sciences, 3 - 8 September 2006, Hamburg, Germany
Paper ICAS 2006-10.4.2

VALIDATION PROCEDURE FOR NONLINEAR ANALYSIS OF STRINGER STIFFENED CFRP PANELS

A. Kling, J. Tessmer, R. Degenhardt
DLR, Germany

Keywords: buckling, cfrp, stiffened panels, validation, nonlinear fem, postbuckling

A new design scenario utilizing the load carrying capacity in the postbuckling range of CFRP panels is detailed. The acceptance of this approach is highly dependent on a rigorous validation of the applied numerical methods using experimental data up to collapse, which implies the application of degradation models.

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